Hosen, Md. Akter and Shammas, Mahaad Issa and Al Kaaf, Khalid Ahmed and Jumaat, Mohd Zamin and Alengaram, U. Johnson and Sulong, Nor Hafizah Ramli and Hashim, Huzaifa (2024) Carbon Fiber Reinforced Polymer (CFRP) for Structural Capacity Enhancement of RC Beams Incorporating Innovative Side Hybrid (SH) Technique. Buildings, 14 (7). p. 1919. ISSN 2075-5309, DOI https://doi.org/10.3390/buildings14071919.
Full text not available from this repository.Abstract
Reinforced concrete (RC) infrastructure is an essential part of modern civilization. However, the serviceability of RC infrastructure in extreme weather has become challenging due to the susceptibility of the initiation of cracks. Hence, the demand for strengthening and retrofitting RC infrastructure is rapidly increasing. The RC specimens strengthened with existing externally bonded reinforcement (EBR) and near-surface mounted (NSM) techniques; however, they suffered a prematurely brittle or debonding failure. Hence, the merging of side near surface mounting (SNSM) and side externally bonded reinforcement (S-EBR) methods ended up resulting in the development of an innovative side hybrid (SH) strengthening approach that is designed to overcome these drawbacks. In this investigation, six rectangular RC beam specimens were flexurally strengthened utilizing carbon fiber-reinforced polymer (CFRP) with the SH technique, and then four-point bending experiments were performed to failure. The beam specimens were categorized into two types: (I) control specimens and (II) specimens strengthened with the SH technique applying CFRP varying bonded length from 1600 mm to 1900 mm. The initial cracking, yield, and ultimate load-bearing capabilities, deflection, failure modes, cracking characteristics, stiffness, energy absorption capacity, and strain on the utmost fiber of concrete, the tensile strain of major steel rebars, SNSM bars, and S-EB plates were assessed from the experimental investigation. The SH technique substantially improved the flexural performance of the beam specimens. The initial cracking load, yield, and ultimate load-bearing capabilities were enhanced remarkably by 387%, 108%, and 163%, respectively, over the reference specimen. The flexural stiffness and energy absorption capacity substantially improved by 120% and 103%, respectively, compared with the reference specimen.
| Item Type: | Article |
|---|---|
| Funders: | University of Malaya High Impact Research (UM.C/HIR/MOHE/ENG/36) |
| Uncontrolled Keywords: | side hybrid; strengthening; flexural enhancement; RC; CFRP; stiffness; energy absorption capacity |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Engineering > Department of Civil Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 25 Mar 2025 01:46 |
| Last Modified: | 25 Mar 2025 01:46 |
| URI: | http://eprints.um.edu.my/id/eprint/46851 |
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